6. Thr ectocerr r.rirrn dirrrtiy frcr- tho npr^f'Ptr.tior 

 cells v'hirh r.re prrr.rped ir r. rrrirherrl layer arcurd the 

 Mast"ccrl p. 



?. Jhe frrraticT cf the e^-rccerr- is by u'i^clar i^- 

 rressior. The Cfllr. at the r-csterior end of the blar,tula 

 hud off the T:ri:^it-'VP rT^doder"- ti^isur v.'hioh riprater. into 

 the blastoooele; a^d later is arranged irto the inrer perir: 

 layer. 



f. ler-atccysts arise chiefly in thf Interstitial rells, 

 soretires in the erdoderr, and riprate to the surface. 



G. The larva beccies attached by its side and is trans- 

 for-^ed irtc the hydr'^rh^za. The root frecuently branches 

 s^cr after attaohnent. 



10. The hydrar.th develor.s frcT a bud, v;hich is piv^n off 

 frcr about the centre of the hydrorhisa. 



11. The tentacles arnear (^arly r." ---^i' -:-^ ^^^■^_ir'^,s at 

 the distal '^art of the hydranth bud. 



12. A thin delicate nerisarc is :^ecreted '^r-'^-r-'^ the 

 hydrcrhiza a-^d ste'^ un to near the tentacles. 



